THE EFFECT OF DEGRADATION PROCESSES ON THE SERVICEABILITY OF BUILDING MATERIALS OF HISTORIC BUILDINGS
DOI:
https://doi.org/10.14311/CEJ.2016.03.0011Keywords:
degradation process, moisture, sandstone, mechanical propertiesAbstract
The article presents an analysis of degradation processes and partial results of an experimental research into materials and structures exposed to the effects of external environments with an emphasis on the effects of moisture and chemical degradation processes on major mechanical properties of sandstone.
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Witzany, J., Stařecký, I., Michalko, O., Toman, J.: Degradation Processes of Building Materials and Structures. A report for MIT CR. FCE CTU, 1992. (in Czech)
Witzany, J.; Čejka, T.; Wasserbauer, R.; Zigler, R. 2010 FDR – Failures, Degradation, Reconstructions, 1st edition. in Czech, CTU Publishing House, Praha. ISBN 978-80-01-04488-9 (in Czech).
Witzany, J.; Čejka, T.; Zigler, R. Load-bearing capacity determination of historic masonry structures In: Advanced Materials Research. 2014. ISBN 978-3-03835-083-5.
Witzany, J.; Čejka, T.; Zigler, R. The effect of moisture on significant mechanical characteristics of masonry In: Structural Stability and Ductility. 24.09.2009 - 25.09.2009. Vilnius, LT.
Witzany, J. et al..: Chemical and Biochemical Degradation of Charles Bridge, Analysis of the Resistance and Safety of the Stone Bridge Structure in Floods, Investigation of Foundation Masonry and Bridge Pier Foundations, Stavební obzor, 12, 2003, No. 6, p. 161–180, ISSN 1210-4027.
Witzany, J. - Wasserbauer, R. - Gregerová, M. - Pospíšil, P. - et al.: Comprehensive Assessment of a Theoretical and Experimental Investigation of Charles Bridge 1994 to 2004, Part 2. In Stavební obzor. 2005, vol. 14, No. 4, pp. 65-82. ISSN 1210-4027. (in Czech)
Grant GAČR 103/06/1801 “Reliability Analysis of the Properties of Building Materials ad Structures with a Focus on their Time-related Changes and Time-variable Effects”, in Czech, 2006- 2008, senior researcher prof. Ing. Jiří Witzany, DrSc.
Research Plan MSM 6840770001 “Reliability, optimization and durability of building materials and structures“, senior researcher prof. Ing. Jiří Witzany, DrSc., 2005-2011
Research Project NAKI DF12P01OVV037 project “Progressive non-invasive methods of the stabilisation, conservation and strengthening of historic structures and their parts with composite materials based on nanofibres”, 2012 – 2015, senior researcher prof. Ing. Jiří Witzany, DrSc.
Čejka, T.: Experimental In-situ Research of Moisture Effect on Mechanical Properties of Historic Masonry Structures, Habilitation thesis, FCE CTU, Praha 2009.
Neubergova, S.: Analysis of selected degradation factors´ influence on physical and mechanical properties of natural stone; Doctoral dissertation, FCE CTU, Praha 2015.
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